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16 Feb 2010 08:58 AM EST
posted by Derek Thorslund
HDX on Linux thin clients? You bet! And the latest version of our Citrix Receiver for Linux enhances the HDX capabilities available to Linux users to provide a full high definition user experience and enable Linux thin clients to earn the HDX Ready designation.
Here are some highlights of what's new in the 11.100 release:
- New audio codec technology, just as was introduced in the 11.2 online plug-in for Windows. Great sound, low bandwidth consumption. And the HDX RealTime Optimized-for-Speech codec features low latency and other characteristics that make it ideal for use with softphones and voice chat (see my recent blog post on VoIP).
- Improved video playback. The 11.100 Citrix Receiver for Linux includes new image codecs that deliver a faster frame rate when the client CPU is busy. XenDesktop 4 server-side video rendering provides a default frame rate of 24 fps (just like at the movies) and can deliver up to 30 fps. On top of that, the new audio codecs ensure that the video soundtrack is faithfully reproduced. These technologies result in a high definition user experience whether watching a recorded video (HDX MediaStream), such as a Flash or QuickTime or Silverlight movie, or participating in a video conference (HDX RealTime). In addition, the 11.100 Receiver is fully compatible with Windows Media Foundation, used in the latest versions of Windows Media Player.
- Webcam support. The 11.100 client adds isochronous USB redirection, supporting webcams for LAN-connected users. This enables users to fully participate in video conferences using applications such as Microsoft Office Communicator, Adobe Connect and others. Isochronous USB also provides an alternative to Bidirectional Audio for devices such as USB telephones which require signaling in addition to the audio path.
- Branch Repeater integration. This enhancement is of huge value to organizations delivering virtual desktops to branch office workers. HDX IntelliCache WAN Optimization analyzes the ICA data stream to identify data which has been sent to the branch before, and greatly reduces bandwidth consumption by just sending a token to the Branch Repeater so that it can pull that data from its local cache. Once one or two people have viewed a video, subsequent viewers consume very little bandwidth because the Branch Repeater effectively acts as a local media server. The same tokenized compression benefits desktop logon, application startup, printing, document viewing, and many other common tasks.
- Support for HDX 3D Pro Graphics. Although this version of the Receiver for Linux doesn't yet support decoding of GPU-compressed data streams, it introduces support for decoding of CPU-compressed Pro Graphics data. So a user with a capable Linux device and a network connection of about 3 Mbps or above can now access a Pro Graphics host workstation for high-end 3D OpenGL and DirectX applications such as CATIA, SolidWorks, Revit Architecture, Maya, Pro/Engineer and many more.
- Enhanced multi-monitor support (HDX Plug-n-Play). The 11.100 Receiver provides full flexibility in multi-monitor orientation and geometry as well as screen resolutions. A new command line parameter allows the client to communicate to Linux window managers that the session should be located on a particular monitor or span a set of monitors, and control how many monitors a desktop is displayed upon.
As you can see, this new release makes sure that Linux users are able to fully enjoy the HDX features of XenDesktop 4, including XenApp. Stay tuned; I expect multiple HDX Ready Linux-based thin clients to appear on the Citrix Ready product web site within the next 60 days.
Derek Thorslund
Citrix Product Strategist, HDX
Comments (7)
Feb 16, 2010
Anonymous says:
Works great - USB pass-through is definitely a nice-to-have. I recall reading s...Works great - USB pass-through is definitely a nice-to-have.
I recall reading somewhere about the possibility for Firefox/Chrome flash redirection with Linux Endpoints... I hope thats still in the cards.
Feb 16, 2010
Anonymous says:
With this new receiver now you can use any like usb devices on xendesktop 4 like...With this new receiver now you can use any like usb devices on xendesktop 4 like receiver 11.2 for windows?
Feb 17, 2010
David Wagner says:
USB has actually been available in 11.0 released Jan 2009. Kind of yes, but sin...USB has actually been available in 11.0 released Jan 2009. Kind of yes, but since Linux does not have the Desktop Viewer, the USB devices are only automatically redirected when running XenDesktop connections in full screen. http://support.citrix.com/proddocs/topic/receiver-linux-blackfoot/linux-usb-wrapper.html
Feb 17, 2010
Anonymous says:
Does the new Linux client support the Branch Repeater client? Can I u...Does the new Linux client support the Branch Repeater client? Can I use the new Linux client without a Branch Repeater on my remote site that connects to one in the main datacenter?
Is Flash redirection / HDX Media Stream for Flash supported in this release?
Feb 17, 2010
David Wagner says:
Hello, Actually it's not the Branch Repeater client that is supported but use o...Hello,
Actually it's not the Branch Repeater client that is supported but use of a Branch Repeater device for ICA caching. So if you have a local Branch Repeater device, the ICA clients are able to leverage that for improved bandwidth optimizations. The value here is the actual device being able to share across multiple sessions and not just for a single end point. e.g. kind of a cache so that redundant data is not retransmitted but reused/cached as needed.
Feb 17, 2010
David Wagner says:
Also client side Flash Acceleration was not included in this release.Also client side Flash Acceleration was not included in this release.
Mar 09, 2010
Werner Ranner says:
David, so client side rendering of flash content will not work? Is this even po...David,
so client side rendering of flash content will not work?
Is this even possible with linux?
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